Crystal Lake, IA Profile: Facts & Data


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Crystal Lake, Iowa - Basic Facts

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The City of Crystal Lake had a population of 250 as of July 1, 2021.

The primary coordinate point for Crystal Lake is located at latitude 43.2233 and longitude -93.7924 in Hancock County. The formal boundaries for the City of Crystal Lake encompass a land area of 0.25 sq. miles and a water area of 0 sq. miles. Hancock County is in the Central time zone (GMT -6). The elevation is 1,280 feet.

The City of Crystal Lake has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Crystal Lake is located within Township of Crystal, a minor civil division (MCD) of Hancock County.

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  1. Crystal Lake 2021 Demographic Data
  2. Growth Rates for Crystal Lake (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Iowa Research Tools (Easy Tools & Current Data)
  3. Iowa Data Comparison Tool - 2021 Demographics

Crystal Lake, IA Data & Demographics (As of July 1, 2021)


Total Population 250 (100%)
Population in Households 250 (100.0%)
Population in Families 205 (82.0%)
Population in Group Quarters1 0
Population Density 981
Diversity Index2 16


Median Household Income $69,877
Average Household Income $74,202
% of Income for Mortgage4 8%
Per Capita Income $32,948
Wealth Index5 66


Total HU (Housing Units) 145 (100%)
Owner Occupied HU 104 (71.7%)
Renter Occupied HU 19 (13.1%)
Vacant Housing Units 22 (15.2%)
Median Home Value $135,870
Average Home Value $219,762
Housing Affordability Index3 297


Total Households 123
Average Household Size 2.03
Family Households 85
Average Family Size 2
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2021 2021-2026
Population 0.0% -0.4%
Households 0.15% -0.16%
Families 1.87% -0.48%
Median Household Income   1.24%
Per Capita Income   1.69%
Owner Occupied HU   -0.19%

Crystal Lake, IA - Peer Comparisons by Rank and Percentile

The table below compares Crystal Lake to the other 1,008 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 645 36th
Population Density # 307 70th
Median Household Income # 265 74th
Housing Affordability Index # 817 81st
Per Capita Income # 360 64th
Diversity Index # 295 71st

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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